This frantic, deadline based creativity reminds me of Layer Tennis, still going strong and coming to the UK right now.
Perhaps someone should inaugurate some kind of competitive poetry competition? Not quite as adversarial as MC Battles, more a lettered exchange, where (like in Layer Tennis) you get points for developing and complementing (if not complimenting) your opponent’s work. Having said that, the obvious name for the competition is Versus.
But until that venture gets off the ground, we’ll always have PoetCasting.
Excellent: Likestarlings (h/t Sarah).